Q. Which of the following is responsible for the mass of an atom?
A. Only protons.
B. Only neutrons.
C. Neutrons and protons.
D. Protons and electrons.
Answer: Neutrons and protons.
A. Only protons.
B. Only neutrons.
C. Neutrons and protons.
D. Protons and electrons.
Answer: Neutrons and protons.